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Sitefinity Release Notes

Sitefinity CMS 15.3.8526 (Patch)

September 29, 2025

What's new:

  • Sitefinity AI Assistant (SAIA): Added support for "AI assistant" MVC widget. Learn more...

What's fixed:

  • Site Sync: Mixed time format in Sync history (566413)
  • Azure Search: Searching for items with dot in the title returns no results (566291)
  • ASP.NET Core Renderer: Unable to open embedded YouTube videos in decoupled Renderer (565310)
  • Related images in 'Backend screens tweaks' are displayed as Not translated (564610)
  • ASP.NET Core Renderer: Copy setting for Section throws error (567541)
  • ASP.NET Core Renderer: Unable to set custom Developer name when adding a field to new Form (564915)
  • Next.js Renderer: Unable to set custom Developer name when adding a field to new Form (564001)
  • Translating child pages with custom URLs creates URLs for those child pages with the custom URL appended to the default URL (440613)

Deprecated capabilities:

  • NativeChat is removed due to the discontinuation of the underlying technology (565927)

Third-party libraries updates:

  • ServiceStack 8.8.0
  • AWSSDK.S3 3.7.405.10

Product security enhancements and updates

  • Cumulative product security enhancements and updates.
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